128755038 has 8 divisors (see below), whose sum is σ = 257510088. Its totient is φ = 42918344.

The previous prime is 128755037. The next prime is 128755049. The reversal of 128755038 is 830557821.

It is a sphenic number, since it is the product of 3 distinct primes.

128755038 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 128754987 and 128755005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128755037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10729581 + ... + 10729592.

It is an arithmetic number, because the mean of its divisors is an integer number (32188761).

Almost surely, 2^128755038 is an apocalyptic number.

128755038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128755038 is a wasteful number, since it uses less digits than its factorization.

128755038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21459178.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 128755038 is about 11347.0277165432. The cubic root of 128755038 is about 504.9574031972.

The spelling of 128755038 in words is "one hundred twenty-eight million, seven hundred fifty-five thousand, thirty-eight".